How long is the flight from United States to Northern Ireland?

Flight times vary depending on what airport in United States you fly out of and what airport in Northern Ireland you fly into. For example, flying from New York to Belfast Intl Airport takes 9h 35m on average. On the other hand, flying from Boston to Belfast Intl Airport takes 11h 25m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Northern Ireland?

British Airways, American Airlines and Delta are the top three most popular airlines that fly to Northern Ireland from United States according to our data. British Airways is the first choice among our users, with 85% of people opting to fly with this airline when traveling to Northern Ireland. Keep in mind that there are 3 different airlines that fly to Northern Ireland on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from United States to Northern Ireland?

Prices for flights from United States to Northern Ireland were last updated today.

How many operators does momondo search for flights from United States to Northern Ireland?

As of September 2025, there are 2 operators available to choose from for flights from United States to Northern Ireland.

How old do you have to be to fly from United States to Northern Ireland?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.

What documentation or ID do you need to fly to Northern Ireland?

The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$172 Cheap Flights from the United States to Northern Ireland in 2025/26

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Find the cheapest flights from the United States to Northern Ireland

Round-trip

One-way

Recent round-trip flight deals from the United States to Northern Ireland

6:05 pm - 10:05 amJFK-BFS

11h 00m1 stop

8:55 pm - 3:55 pmBFS-JFK

24h 00m1 stop

$482Multiple Airlines

Find Deal

Fri, Nov 28 - Tue, Dec 2

6:20 pm - 9:55 amJFK-BFS

10h 35m1 stop

6:10 am - 3:55 pmBFS-JFK

14h 45m1 stop

$517Multiple Airlines

Find Deal

Sun, Sep 28 - Thu, Oct 9

4:30 pm - 1:55 pmLAX-BHD

14h 25m1 stop

11:05 am - 9:25 pmBHD-LAX

17h 20m1 stop

$579Finnair

Find Deal

Sun, Mar 15 - Thu, Mar 26

1:25 pm - 1:30 pmLAX-BHD

16h 05m1 stop

6:35 am - 6:05 pmBHD-LAX

19h 30m1 stop

$580American Airlines

Find Deal

Wed, Oct 15 - Thu, Oct 23

10:00 pm - 6:40 pmLAX-BHD

13h 40m1 stop

11:30 am - 7:25 pmBHD-LAX

14h 55m1 stop

$584British Airways

Find Deal

Sun, Mar 15 - Fri, Mar 27

11:30 am - 11:55 amLAX-BHD

16h 25m2 stops

12:40 pm - 8:15 pmBHD-LAX

15h 35m1 stop

$585American Airlines

Find Deal

Wed, Oct 15 - Thu, Oct 23

3:30 pm - 2:15 pmLAX-BHD

14h 45m1 stop

11:25 am - 6:30 pmBHD-LAX

15h 05m1 stop

$629British Airways

Find Deal

Fri, Jan 23 - Tue, Feb 3

3:30 pm - 2:15 pmLAX-BHD

14h 45m1 stop

11:25 am - 6:30 pmBHD-LAX

15h 05m1 stop

$632Finnair

Find Deal

Fri, Jan 23 - Tue, Feb 3

9:59 am - 4:50 pmLAX-BHD

23h 51m2 stops

6:30 am - 9:49 pmBHD-LAX

23h 19m2 stops

$696Delta

Find Deal

Thu, Oct 30 - Thu, Nov 6

5:40 pm - 9:15 pmSEA-BHD

19h 35m1 stop

6:30 am - 4:05 pmBHD-SEA

17h 35m1 stop

$779Delta

Find Deal

Fri, Oct 3 - Fri, Oct 10

Iberia flights from United States to Northern Ireland

Our best Iberia deals on United States to Northern Ireland flight tickets

Iberia

Oct 1

SEA7:48 amSeattle/Tacoma Intl

20h 07m

2 stops

BHD11:55 amBelfast City

Oct 8

BHD6:50 amBelfast City

12h 45m

1 stop

SEA11:35 amSeattle/Tacoma Intl

$741

Find similar

Iberia

Oct 6

LAX8:05 pmLos Angeles

13h 25m

1 stop

BHD5:30 pmBelfast City

Oct 8

BHD6:50 amBelfast City

20h 20m

2 stops

LAX7:10 pmLos Angeles

$1,071

Find similar

KLM flights from United States to Northern Ireland

Our best KLM deals on United States to Northern Ireland flight tickets

KLM

Mar 15

LAX2:45 pmLos Angeles

23h 15m

1 stop

BHD9:00 pmBelfast City

Mar 25

BHD6:30 amBelfast City

18h 17m

2 stops

LAX5:47 pmLos Angeles

$797

Find similar

KLM

Oct 3

SEA5:40 pmSeattle/Tacoma Intl

15h 15m

1 stop

BHD4:55 pmBelfast City

Oct 10

BHD6:30 amBelfast City

17h 35m

1 stop

SEA4:05 pmSeattle/Tacoma Intl

$819

Find similar

KLM

Mar 15

LAX7:20 pmLos Angeles

18h 40m

2 stops

BHD9:00 pmBelfast City

Mar 25

BHD6:30 amBelfast City

18h 17m

2 stops

LAX5:47 pmLos Angeles

$966

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from the United States to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Fri 11/28

6:05 pm-10:05 am

1 stop11h 00m

Belfast Intl

Tue 12/2

8:55 pm-3:55 pm

1 stop24h 00m

$482

New YorkBelfast

JFK - BFS

JFKBFS

New York John F Kennedy Intl

Sun 9/28

6:20 pm-9:55 am

1 stop10h 35m

Belfast Intl

Thu 10/9

6:10 am-3:55 pm

1 stop14h 45m

$517

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 3/15

4:30 pm-1:55 pm

1 stop14h 25m

Belfast City

Thu 3/26

11:05 am-9:25 pm

1 stop17h 20m

$579

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 10/15

1:25 pm-1:30 pm

1 stop16h 05m

Belfast City

Thu 10/23

6:35 am-6:05 pm

1 stop19h 30m

$580

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Sun 3/15

10:00 pm-6:40 pm

1 stop13h 40m

Belfast City

Fri 3/27

11:30 am-7:25 pm

1 stop14h 55m

$584

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Wed 10/15

11:30 am-11:55 am

2 stops16h 25m

Belfast City

Thu 10/23

12:40 pm-8:15 pm

1 stop15h 35m

$585

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

Tue 2/3

11:25 am-6:30 pm

1 stop15h 05m

$629

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Fri 1/23

3:30 pm-2:15 pm

1 stop14h 45m

Belfast City

Tue 2/3

11:25 am-6:30 pm

1 stop15h 05m

$632

Los AngelesBelfast

LAX - BHD

LAXBHD

Los Angeles

Thu 10/30

9:59 am-4:50 pm

2 stops23h 51m

Belfast City

Thu 11/6

6:30 am-9:49 pm

2 stops23h 19m

$696

SeattleBelfast

SEA - BHD

SEABHD

Seattle/Tacoma Intl

Fri 10/3

5:40 pm-9:15 pm

1 stop19h 35m

Belfast City

Fri 10/10

6:30 am-4:05 pm

1 stop17h 35m

$779

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from United States to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Friday when prices can be found for as low as $691. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from United States to Northern Ireland for around $1,143.

What is the cheapest time of day to depart on your flight to Northern Ireland?

At noon is the cheapest time of day to fly from United States to Northern Ireland when you can find flight prices for as low as $681. Flying to Northern Ireland at noon is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $838.

Can stopping save me money on United States to Northern Ireland flights?

You could potentially save up to 6% on your flight if you consider stops on a United States to Northern Ireland flight.

Cheap United States to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United States to Northern Ireland

Direct flights	None

There are no direct flights from United States to Northern Ireland. There are no popular flight routes from United States to Northern Ireland.

Search flight deals

When did momondo last update prices for flights from United States to Northern Ireland?
Prices for flights from United States to Northern Ireland were last updated today.
How many operators does momondo search for flights from United States to Northern Ireland?
As of September 2025, there are 2 operators available to choose from for flights from United States to Northern Ireland.
How old do you have to be to fly from United States to Northern Ireland?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from United States to Northern Ireland.
What documentation or ID do you need to fly to Northern Ireland?
The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from United States to Northern Ireland

Compare and see reviews for airlines that fly from United States to Northern Ireland with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $504	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
British Airways	PriceFrom $538	Free Cancellation	Rating 6.7 7,363 reviews		Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from United States to Northern Ireland?

Finding the right flight to Northern Ireland from United States is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Northern Ireland quick and easy, saving you time and money.

Can I find flights from United States to Northern Ireland with flexible booking policies on momondo?

Flights from United States to Northern Ireland with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United States to Northern Ireland?

Once you have performed a search for United States to Northern Ireland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United States to Northern Ireland right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of United States to Northern Ireland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.